223
FNCA52 TJSJ 070730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST MON SEP 7 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-072000-
SOUTHEAST COASTAL PLAINS-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 10
TEMP (24H TREND) 91 (+2) 75 (-3) 91
RH % (24H TREND) 55 (-8) 93 (+5) 52
WIND 20FT/EARLY(MPH) E 11 E 11 E 19
WIND 20FT/LATE(MPH) SE 13 E 10 E 19
MIXING HGT(FT-AGL/MSL)4680 5230
TRANSPORT WND (MPH) SE 12 E 20
VENT RATE (KT-FT) 46800 88910
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-072000-
SOUTHERN HILLS-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30
TEMP (24H TREND) 89 (+4) 71 (-4) 89
RH % (24H TREND) 62 (-9) 98 (+4) 61
WIND 20FT/EARLY(MPH) E 9 E 10 E 13
WIND 20FT/LATE(MPH) SE 11 E 11 E 14
MIXING HGT(FT-AGL/MSL)5470 5580
TRANSPORT WND (MPH) SE 10 E 18
VENT RATE (KT-FT) 49230 89280
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-072000-
NORTH COASTAL PLAINS-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 30 30
TEMP (24H TREND) 91 (+1) 75 (-3) 90
RH % (24H TREND) 64 (-6) 99 (+4) 65
WIND 20FT/EARLY(MPH) E 11 SE 10 E 14
WIND 20FT/LATE(MPH) E 16 SE 10 E 19
MIXING HGT(FT-AGL/MSL)4970 5260
TRANSPORT WND (MPH) SE 9 E 18
VENT RATE (KT-FT) 39760 84160
DISPERSION 5 5
DSI 5 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-072000-
NORTHERN HILLS-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 20 30
TEMP (24H TREND) 90 (+2) 72 (-3) 89
RH % (24H TREND) 66 (-4) 99 (+2) 66
WIND 20FT/EARLY(MPH) E 8 SE 6 E 12
WIND 20FT/LATE(MPH) E 12 SE 5 E 17
MIXING HGT(FT-AGL/MSL)5380 6120
TRANSPORT WND (MPH) SE 7 E 16
VENT RATE (KT-FT) 32280 85680
DISPERSION 5 5
DSI 5 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-072000-
WEST COAST-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 0 50
TEMP (24H TREND) 93 (+2) 74 (-2) 92
RH % (24H TREND) 63 (-4) 100 (+4) 62
WIND 20FT/EARLY(MPH) E 11 E 11 E 14
WIND 20FT/LATE(MPH) E 14 E 11 SE 16
MIXING HGT(FT-AGL/MSL)4430 4960
TRANSPORT WND (MPH) SE 10 E 14
VENT RATE (KT-FT) 39870 59520
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-072000-
EASTERN INTERIOR-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 90 (+3) 73 (-3) 89
RH % (24H TREND) 63 (-6) 99 (+4) 63
WIND 20FT/EARLY(MPH) SE 10 SE 12 E 14
WIND 20FT/LATE(MPH) SE 14 E 13 E 14
MIXING HGT(FT-AGL/MSL)6430 6040
TRANSPORT WND (MPH) SE 10 E 18
VENT RATE (KT-FT) 57870 96640
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-072000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 86 (+4) 71 (-3) 86
RH % (24H TREND) 69 (-8) 100 (+2) 68
WIND 20FT/EARLY(MPH) SE 9 SE 10 E 13
WIND 20FT/LATE(MPH) SE 12 E 10 E 13
MIXING HGT(FT-AGL/MSL)4820 4840
TRANSPORT WND (MPH) SE 12 E 20
VENT RATE (KT-FT) 48200 82280
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-072000-
CENTRAL MOUNTAIN RANGE-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 0 40
TEMP (24H TREND) 88 (+6) 69 (-4) 87
RH % (24H TREND) 67 (-9) 100 (+3) 67
WIND 20FT/EARLY(MPH) SE 8 SE 6 E 11
WIND 20FT/LATE(MPH) SE 8 E 5 E 11
MIXING HGT(FT-AGL/MSL)6110 6860
TRANSPORT WND (MPH) SE 9 E 14
VENT RATE (KT-FT) 48880 82320
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-072000-
CAYEY MOUNTAIN RANGE-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 40
TEMP (24H TREND) 85 (+2) 72 (-2) 85
RH % (24H TREND) 70 (-5) 100 (+2) 68
WIND 20FT/EARLY(MPH) SE 8 E 10 E 11
WIND 20FT/LATE(MPH) SE 10 E 9 E 11
MIXING HGT(FT-AGL/MSL)5570 5420
TRANSPORT WND (MPH) SE 9 E 20
VENT RATE (KT-FT) 44560 92140
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-072000-
VIEQUES-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 60 50 50
TEMP (24H TREND) 91 (+1) 79 (-2) 89
RH % (24H TREND) 59 (-5) 87 (0) 61
WIND 20FT/EARLY(MPH) SE 12 E 16 E 16
WIND 20FT/LATE(MPH) SE 12 E 16 E 16
MIXING HGT(FT-AGL/MSL)2980 3510
TRANSPORT WND (MPH) SE 14 E 20
VENT RATE (KT-FT) 35760 59670
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-072000-
CULEBRA-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 50 50 40
TEMP (24H TREND) 91 (+1) 79 (-2) 90
RH % (24H TREND) 63 (-7) 92 (+2) 64
WIND 20FT/EARLY(MPH) SE 13 E 16 E 16
WIND 20FT/LATE(MPH) SE 14 E 16 E 16
MIXING HGT(FT-AGL/MSL)3130 3590
TRANSPORT WND (MPH) SE 17 E 20
VENT RATE (KT-FT) 46950 61030
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-072000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 20
TEMP (24H TREND) 92 (+2) 75 (-3) 92
RH % (24H TREND) 53 (-7) 95 (+4) 53
WIND 20FT/EARLY(MPH) E 14 E 14 E 20
WIND 20FT/LATE(MPH) SE 17 E 14 E 21
MIXING HGT(FT-AGL/MSL)4670 4910
TRANSPORT WND (MPH) SE 15 E 21
VENT RATE (KT-FT) 60710 88380
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-072000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 30
TEMP (24H TREND) 90 (+2) 78 (-3) 89
RH % (24H TREND) 61 (-8) 92 (+3) 63
WIND 20FT/EARLY(MPH) SE 13 E 17 E 18
WIND 20FT/LATE(MPH) SE 16 E 17 E 18
MIXING HGT(FT-AGL/MSL)3230 3760
TRANSPORT WND (MPH) SE 15 E 21
VENT RATE (KT-FT) 41990 67680
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-072000-
ST CROIX-
330 AM AST MON SEP 7 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 30
TEMP (24H TREND) 91 (+2) 79 (-1) 90
RH % (24H TREND) 64 (-5) 93 (+2) 64
WIND 20FT/EARLY(MPH) SE 12 E 16 E 17
WIND 20FT/LATE(MPH) SE 12 E 16 E 17
MIXING HGT(FT-AGL/MSL)4410 4910
TRANSPORT WND (MPH) SE 14 E 22
VENT RATE (KT-FT) 52920 93290
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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